Caterpillar dual d9 pushing scrapers

[stinkycat]

The Anaconda Company had some of the early DD9's, late 66 or early 67. Had trouble with the hitch breaking got that problem fixed. I know in 67 they had stripped one to the frame for overhaul don't know what the hours were but they were high. Our shop had 5 groups track,scraper, electric trucks, fuel&lube, and pit mechanics (of which I was one)we also had a cutting edge crew that changed or turned the cutting edges on the 666's every shift, and some of the action then is now fuzzy in the 72 year old brain of mine

 

[catken]

Peter K. and Western Contracting both used Quads. Kiewit had one in Kansas but had them split and "C" dozers on them.
Western had one in Chamberlin, South Dakota and was used on the bridge approaches across the Missouri in the early 70's.
Western let it set in S.Dak for several years along with some 3 axle Euc scrapers. I believe once or twice a year they would
come around and start them. Lost track of them and don't know where they went. Maybe some old Western guys can add
a little lite to this. Western use to have machinery yards all over the country. The 91j Kiewit had was sold to a guy in S.Dak.

 

[Maurice Muenks]

That brings back some old memories. The ones I saw at that time were building 63 north of Columbia, Mo and they were pushing cat 660 scrapers. I wish I'd taken more pictures of that kind of stuff. They used one standard D9 then followed with the DD9's, so that made 3 D9's pushing one 60 yd scraper, and they had two pusher set to keep up with the number of scrapers (can't understand why they had some of the bottoms torn out of the scrapers). You could tell the days they worked, just look for thef black cloud.

 

[Gavin84w]

Tony - The first DD9G S/N was the Buster Peterson "Quad-Trac", produced in 1965. Note that the "Service Reporter" magazine that reported the release of the "Quad-Trac" was Issue Four of 1965 (Sept-Dec).
Thus, the Peterson "Quad-Trac" was built from late 1965 to 1968 - when Cat started producing the DD9G with 90J/91J S/No's. It appears that the Peterson "Quad-Tracs" used regular production D9G S/No's.

According to my book, there were 51 of the DD9G's built, but only 7 of the DD9H's. Eric Orlemann claims there were 10 Quad-Trac D9G's sold. I can't tell you who bought the first DD9G.
It looks like a lot of the DD9G's and Quad-Tracs were separated and used as individual tractors - and probably sold off as individual tractors as well.

There's some good pics on "QuAD's" website, of a DD9G working in the Maastricht ENCI Quarry in the early 1970's. According to "QuAD", as far as he knows, this was the only DD9G sold outside the U.S., into Europe.
According to Deas Plant, Bell Bros of Western Australia purchased one DD9G and it was used at Alcoa in Pinjarra. I have no knowledge of that tractor.

http://www.bouwmachinesvantoen.nl/bedrijvenpagina/Curfs/curfs.htm

Oz,

I think the BB set may have been DD9H,s, talk on this side of the island is they came over to the Hunter Valley and were purchased by either Paul Cant (Bloomfields) or HVE (Hunter Valley Earthmoving) and didn,t stay together for to long, supposedly split and regular blades added to each machine.

Did you get my email?

 

[bigshow]

A salesman from Guntert and Zimmerman was telling me about a completely rehabbed DD9 that a man from Kiewitt had out in the northwest, I think it's posted on here somewhere.

 

[OzDozer]

Gavin - Yes, got your email, sorry for the slow reply.

 

[catken]

Maurice was that a Western job in Missouri? They built a few large dams in Kansas. They did have 660's and quad 9's.

 

[Maurice Muenks]

Maurice was that a Western job in Missouri? They built a few large dams in Kansas. They did have 660's and quad 9's.

Not sure, I was probably 12 or 13 at the time and they were building Hwy 63 went through part of an open pit mine that is now Finger Lakes state park and was created by PeaBody coal, and from some of the research that have done I believe that Big Brutis was the shovel used in that operation. What a contrast! That sure made a D9 look like an ant.

 

[Tvan]

You Got it right, a Quad Hand can get pretty tricky with that joy stick, as far as straightening up the back tractor when you can in at a angle etc etc

 

[Oxbow]

I'll bet the learning curve can get expensive! A fellow I used to work for used to run these on a large canal project in New Mexico in the 70's.

 

[Tvan]

Oxbow, that is where I broke in on a Quad for PKS in the mid 60's on I-40 east of Albq, yes seen a guy turn to short and clip front and rear track and broke ball holding the tractor together, that was the reason I got out of the seat of a scraper and broke in on the Quad, can still hear the Bark of those 9G's.came to Alaska late 60's and ran Quads here for Kiewit and Green, good memories.

 

[Oxbow]

Oxbow, that is where I broke in on a Quad for PKS in the mid 60's on I-40 east of Albq, yes seen a guy turn to short and clip front and rear track and broke ball holding the tractor together, that was the reason I got out of the seat of a scraper and broke in on the Quad, can still hear the Bark of those 9G's.came to Alaska late 60's and ran Quads here for Kiewit and Green, good memories.

That would have been a great experience, sorry I missed it.

 

[X Quad Operator]

That was an exciting era, I worked on a job in 1962, there was a brand new Quad-D9G on the job, they teamed it up with a single D9G triple pushing new 657's before there was push pulls. That was exciting. Nothing like moving dirt back in 62' in California. Mike Nebergall

 

[Tvan]

We used a quad and 1/2 in Alaska for M-B on the Alaska Hwy Pushing 651Bs, all that Big Iron is pretty well left the state, Granite still has MBs old quad, plus part of another one that was PKs back in the 70s when I ran it, everyone using big hoes and trucks seem like now days, still Great memories.
Tommy

 

[X Quad Operator]

Good afternoon, muckshifter631c, I use to own 10 scrapers, 6, narrow nose 637C's and 4, 657B's push pulls, and all the support equiptment, I'm not trying to be nosey, how did you find the video of the Quad-D9G? I ran Scarsella Brothers Quads in Washington for 3 1/2 years, 10 years ago. Loved them. Mike Nebergall

 

[cat3208]

Thanks! Very interesting!

 

[Randy88]

If the second unit had no seat or a fuel tank turned sideways, how was it hauled from job to job, back it onto a trailer, then unhook them and haul both on two seperate trailers, then back up to the still loaded one, hook them together again and drive it off the trailer or how? This got my curiosity up.

 

[johan7]

In the early 70's I had to do with the "only" DD9 outside the US , in the Netherlands . The machine was not transported very much , but if so , the tractors were taken apart by loosening the big ball and socket and the air hoses etc . Our DD9 was equipped with the so called weight transfer system . This frame could be hanged up during transport . Then the machines could be operated from their own seats . Later these machines were sold apart from each other and have worked some years in Germany .
The Netherlands , johan7

 

[JDOFMEMI]

If the second unit had no seat or a fuel tank turned sideways, how was it hauled from job to job, back it onto a trailer, then unhook them and haul both on two seperate trailers, then back up to the still loaded one, hook them together again and drive it off the trailer or how? This got my curiosity up.

I can't say for sure, but I would imagine that the operator would stand or sit on a milk crate or something to move it short distances like loading and unloading. The controls are all there still.

johan7

Welcome to the HEF, and thanks for sharing about the DD-9.

 

[johan7]

Hello JDOFMEMI , I found a pic of the DD9 with the 2 tractors seperated for transport . This work can be done in about 30 minutes . We had the model with the weight transfer system and with the hydralic ram we could lift the subframe to fasten it to the mainframe . As you see the secon d machine is equipped with a normal seat .
The Netherlands , johan7